INTRODUCTION

The ST62T18C and ST62E18C devices are low cost members of the ST62xx 8-bit HCMOS family of microcontrollers, which are targeted at low to medium complexity applications. All ST62xx devices are based on a building block approach: a common core is surrounded by a number of onchip peripherals.

The ST62E18C is the erasable EPROM version of the ST62T18C device, which may be used to emulate the ST62T18C device, as well as the respective ST6218C ROM devices.

■ 3.0 to 6.0V Supply Operating Range

■ 8 MHz Maximum Clock Frequency

■ -40 to +125°C Operating Temperature Range

■ Run, Wait and Stop Modes

■ 5 Interrupt Vectors

■ Look-up Table capability in Program Memory

■ Data Storage in Program Memory: User selectable size

■ Data RAM: 192 bytes

■ User Programmable Options

■ 12 I/O pins, fully programmable as:

– Input with pull-up resistor

– Input without pull-up resistor

– Input with interrupt generation

– Open-drain or push-pull output

– Analog Input

■ 5 I/O lines can sink up to 20mA to drive LEDs or TRIACs directly

■ 8-bit Timer/Counter with 7-bit programmable prescaler

■ 8-bit Auto-reload Timer with 7-bit programmable prescaler (AR Timer)

■ Digital Watchdog

■ 8-bit A/D Converter with 7 analog inputs

■ 8-bit Asynchronous Peripheral Interface (UART)

■ On-chip Clockoscillator can be driven by Quartz Crystal or Ceramic resonator

■ Oscillator Safe Guard

■ Low Voltage Detector for safe Reset

■ One external Non-Maskable Interrupt

■ ST623x-EMU2 Emulation and Development System (connects to an MS-DOS PC via a parallel port).